Road edger for asphalt finishers and spreaders



O 951945. w. H. Lawls 2 386,221

ROAD ED GER FOR ASPHALT FINISHERSAND SPREADERS Filed Sept. 16 1940 2 Sheets-Sheet l I I .3nnentor' F 16.2; v MHLE'MS" (Ittorneg Oct. 9, 1945; w. H. LEWIS 2. 3

ROAD EDGER FOR ASPHALT FINISHERS AND SPREADERS Filed Sept. 16, 1940 ZSheets-Sheet 2 vi irci-fi. 7776- i I 3nnentor WHL W16 Patented Oct. 9, 1945 Es P T NT orlcE ROAD EVDGERYFOR ASPHALT FINISHERS 7 AND SPREADERS William Hurst Lewis, Los Angeles, Calif. Application September 16, 1940, Serial No. 356,901

, '16 Claims.

My present invention relates to an edger for spreaders and finishers of asphalt paving and the like.

In the mechanical spreading of asphalt, or other materials, on roads, and the finishing of the surfaces of the asphalt, or other road or surfacing materials, the edges of the road or other surface remainrough and unfinished in scalloped eliminate such scalloped edges, thereby saving considerable time in following the machine, to finish the road surface, and also avoiding imperfect road construction.

Another important object also of this invention is to provide a machine of thisclass whereby the edge of the road is grooved to provide space for material during subsequent compressing or rolling operation, and also whereby the edge is rounded to provide the desired finish. A further important object of this invention is to provide a machine of this class in which the edger portion of the machine is constantly and resiliently forced against the form boards, eliminating the whole of the usual unfinished edge of the constructed road.

An object also of this invention is to provide a machine of this class which is resiliently centered between the road side forms and which is also provided with means for positively limiting trans verse movement of the machine within the side forms.

An important object also of this invention is the provision of a machine of this class which is simple and economical of construction, operation, andadjustment, and which will not readily deteriorate or get out of order.

With these and other objects in view, as will appear hereinafter, I have devised a road edge finisher for road material spreaders and finishers, as will be hereinafter described in detail and particularly set forth in the appended claims, reference being had to the accompanying drawings and to the characters of reference therein, which form a part of this application, in which:

Fig. 1 is a plan view of a fragmentary portion of one corner of a road material spreading and finishing machine incorporating the improvements of my edger;

Fig. 2 is a fragmentary side elevation thereof;

Figs. 3 and 4 are transverse sectional elevation thereof, taken, respectively, through 3 -3 and 4 -4 of Fig. 1;

Fig. 5 is an enlarged fragmentary sectional ele vation, taken through 5-5 of Fig. 1;. and

Fig. Bis a fragmentary section, taken through 66 of Fig. 4. 1

The edger for road surfacers and finishers, dis-' closed in this application, is an. improvement of and an addition to. my previous and co-pending application for asphalt finishers .and spreaders, filed in the United States Patent Oflice June 17, 1939, Serial No. 279,684, and terminating in Patent No. 2,314,358, issued March 23, 1943. Reference will be made thereto for a complete undere standing of the whole structure to which'this application relates,

My present machine is constructed to operate on side forms or header boards A, The frame. I of the machine is supported upon wheels 2, which normally ride upon the header boards; At each of the corners of the frame is slidably mounted in a vertical directiona pair of sliding supports 3 which are provided at their lower ends with bearings 3 Below the lower ends of these sliding supports 3 is positioned a long skid 4 which is provided at its ends'with'bearing rods 4 which extend through the bearings 3 for permitting the skid to move transversely of the form boards A. The skids 4, together with the supporting slides 3, are raised from the header boards and with respect to the frame I by any 7 suitable means (not shown), when the grading means is not used, but when the machine is employed in grading operation, the skid 4 rests upon the form boards A.

The skid 4 is forced outwardly with respect to the frame by leaf springs 5 secured to the upper ends of the supporting slides 3, and they engage at their free ends the skid 4, adjacent the sliding rods 4% as shown best in Figs. 1 and 3.

The outward limit of the skid 4, when forced outwardly by the springs 5, is determined by narrow flange wheels 6, positioned backwardly from the slide rods 4*. These narrow fiange wheels 6 engage the inner sides of the form boards, and the lower edges thereof extend slightly below the top of these form boards.

It will be here noted that one of these flange wheels 6 is positioned at the rearmost portion of the frame, and particularly behind the rear grading means so that no disturbance is made in the asphalt or other grading material, except a narrow groove in the surfaced and finished material adjacent the header board.

These flange wheels 6 resiliently locate the frame with respect to the header boards, but the frame is positively located centrally between means of a screw 23, there being provided one at each end of the beam, Thus,-the supporting beam 22 is adjustable vertically with respect to I the supporting shoes 2|, but is transversely reciprocable therewith on the skids 4. The means for reciprocating the shoes and beam is fragmentarily shown as a connecting rod 31, pivotally connected at one end to the beam 22, and at its other end to a suitable reciprocating mechanism (not shown).

At the forward .side of the :beam is positioned a grading means. The grading means, asshown in the drawings, :consist of a concavezgrader or grading plate or plates 24 and concave grader plates 26. The latter are laterally stationary and the former are laterally reciprocable relative thereto. The plates 24, or each plate 24 (if only one is used), are supported on the beam 22 in such a manner as to be adjusted vertically .by means :of adjusting screws 25. The grading plate 28 is adjusted vertically with respect to the beam 22, but is transversely :reciprocable therewith relative to the skids '4. :One of the grader or grading plates or .plate members 26 .is slidable or extensible longitudinally, or is telescopically mounted with respect to the plate 2 4. The cross-section of the grading plate member 26 conforms with that of the plate .24, and its inner end is positioned behind the former. The end grading plate, which will be hereinafter reierred to as grader or grading ,plate member 126, has a longitudinal socket 26? at the outer end of its upper :edge, and another longitudinal socket 2'6 at the back side of its inner end, the latter being positioned at the lower portionof the grading plate member. Into thesessockets 26 and .26 extend, respectively, rods 24 and 24 which are carried by and extend beyond the ends of the plate 124, to allow the main grader'plate 24 and the members '26 to slide longitudinally relative to each other. The grader plate member .26 :is provided "with a transverse wing 26 which slides vertically within a groove of :a retaining :member 1221 carried by asbracket 28 mounted on the skid. With this construction-the grading means is permitted to :be raised and lowered as desired, but the :grading plate .member is retained against lateral movement with respect. to the skid and :is moved "with :the .skid against the form boards. Ellhis aconstruction .also permits the main grading plate or plates 2A :to be xnoved iaterally with .respect .to the grading plate member 25, :andatthe same timerretaining-a continuous :smooth finished surface ?the ".whole distance between the 'form boards "for the :asphalt or other road imateria'l.

sllrough I :have shown and described :a particular construction, nornbination, and arrange-ment of parts and portions, .and.a :particular application :to :asphalt spreaders sand finishers, I "do not wish to be limited to thesame, Ibut desire :to Einclude :in :therscopepf :my invention :the construction, combination, and arrangement of :parts :and portions. :andrapplication toanachines other than asphalt spreaders and finishers, substantially as set forth in the appended claims.

I claim:

1. In a machine of the class described, capable of being used with road form boards, a frame, skids on the frame, said skids being capable of sliding on the form boards, grader plate means transversely reciprocated with respect to the form boards and horizontally slidably supported on the skids, and grader plate members connected to and extending laterally with respect to the skids, the grader plate members being carried by and connected with the ends of the grader plate means.

2.2m a machine of the class described, capable of being used with road form boards, a frame, skids at the ends of the frame, said skids being capable of sliding :on the form boards, a grader for reciprocating the grader plate means transyersely with respect to the frame, and grader plate members slidably carried by the ends of the grader plate means and laterally fixed with respect to the skids.

:3, In a machine of the class described, .capable of being used "with road form boards, a frame, skids at :the :ends of the frame, said skids being capable of sliding on the form boards, a grader .plate means slidably supported at its opposite 'ends :in a :horizontal direction on the skids, means for :reciprocating xthe grader plate means transversely iwithrespect .to the frame, and grador plate members laterally zslida-bly carried in overlapping :relation :by the .ends of the grader plate means, said grader plate members being laterally-fixed with respect to the skids.

a. in a machine of the class described, capab'lB'IQf heing'used with road form boards, aframe, skids at :the opposite sides of the frame, said skids :being capable of sliding on the form boards, a beam reciprocally mounted :on the skids, grader plate imeans zad justably supported on the beam, and grader plate members connected to the skids, :the ends of :the grader plate means being slidably connected with the grader plate memhers.

5. In a machine of the class described, capable of used with road form boards, a frame, means for supporting the frame on the form beards, guide discs, :resilient means carriedon the frame for :forcing the guide discs against :the inher sides :of the form boards, grader plate members in association with the discs and capable of moving ilatera'lly therewith .relative to ithetform boards, and rgnaderzplate .means reciprocally carriad by :the frame transversely rrelative to the farm boards the .end :portions :thereof being slidably connected with=said grader :plate members.

5. :In .a means of 713118 :class described, capable of :being :used with road .form boards, .a frame, means :for :supporting the frame :on the form bnards, :grader zsupportingxmeans, at the side of the rirama adapted to rest .on the form boards,

guide discs :in association with the latter supmeans, "resilient means carried on the framerfor forcingtthei guide discs-against the form hoards, grader :plate :members :connected to the gradensupportingrmeans, and grader'plate'means also mounted an the latter supporting means but slidable with respect thereto and having its ends slidably connected :with the grader "plate members,

7. In .azmachineof ithe class described, (fanable of being used with road form boardsra-frame,

means at the side of the frame for movement along the form boards, guide discs mounted on the means, resilient means carried on the frame for forcing said discs against the inner sides of the form boards, and a grader plate member connected to the first means and adapted to be moved therewith by said resilient means with respect to the form boards.

8. In a machine of the class described, a frame, supporting means at the opposite sides of the frame, a supporting beam reciprocally mounted on and with respect to the supporting means, transversely positioned grader plate members laterally fixed with respect to the supporting means but slidable vertically with respect thereto, and a grader plate adjustable vertically with respect to the beam and slidably connected in a horizontal direction with said grader plate members, said grader plate members being adjusted vertically by and with said grader plate.

9. In a machine of the class described, capable of being used with road form boards, skids for sliding upon the form boards, a beam reciprocally mounted at its opposite ends on the skids, a grader plate carried by the beam, grader plate members slidably connected in a horizontal direction to the ends of the grader plate, said plate being adjustable in a vertical direction with respect to the skids, said grader plate members being laterally fixed with respect to the skids and adjustable vertically with respect thereto with the adjustment of said grader plate.

10. In a machine of the class described, capable of being used with road form boards, a frame, Wheels for supporting the same on the form boards, vertical sliding supports on the frame, skids slidably mounted in a horizontal direction on and depending below the lower ends of the sliding supports, the guide Wheels carried at the inner sides of the skids, springs for forcing the skids outwardly with the guide Wheels against the inner sides of the form boards, a beam reciprocally mounted in a horizontal direction on the skids, and a grader means carried by the beam, said grader means comprising a plate carried by the intermediate portion of the beam, and grader plate members slidable horizontally with respect to the end portions of the plate, said grader plate members and skids having interlocking means for holding said members against horizontal movement but allowing vertical movement with respect to the skids. V

11. In a machine of the class described, capable of being used with road form boards, a frame, skids at the opposite sides of the frame, said skids being capable of sliding on the form boards, a beam reciprocally mounted on and adjustable vertically with respect to the skids, grader plate means adjustably supported on the beam, and grader plate members connected to the skids,

the ends of the grader plate means being slidably connected with the grader plate members,

12. In a machine of the class described, a frame having laterally fixed grader plate supports at the sides, and a telescoping grader plate means extending transversely of the frame and carried upon said supports, said means comprising end grader plate portions connected to and laterally fixed with respect to said grader plate supports, and another portion of-said' means being reciprocable with respect to said end portions.

13. In a machine of the class described, a frame having laterally fixed grader plate supports at the sides, a telescoping grader plate means extending transversely of the frame and carried upon said supports, said means comprising end grader plate portions connected to and laterally fixed with respect to said grader plate supports, and another portion of said means being reciprocable with respect to said end portions, and means on the frame for simultaneously raising all of the portions of said grader plate means.

14. In a machine of the class described, capable of being used with road form boards, a frame having laterally fixed grader plate supports at its sides and adapted to rest on the form boards, a telescoping grader plate means extending transversely of the frame and carried upon said supports, said means comprising end grader plate portions laterally fixed with respect to said supports, and another portion of said means being reciprocable with respect to said end portions, and means for resiliently forcing said end portions toward and adjacent the inner sides of said form boards.

15. In a machine of the class described, a frame, skids on the frame, a grader means extending transversely of the frame, said grader means comprising end grader plate portions and an intermediate grader plate portion overlapping the end portions and longitudinally movable with respect thereto, means on the skids for holding the end portions against lateral movement with respect thereto, and other means on the frame for reciprocating the intermediate portion with respect to the end portions.

16. In a machine of the class described, a frame, a grader means extending transversely of the frame, said grader means comprising an end grader plate portion and an intermediate grader plate portion overlapping and cooperatively connected to the end portion and longitudinally with respect thereto, means on the frame for holding the end portions against lateral movement, other means on the frame for reciprocating the intermediate portion with respect to the end portion, and means for raising one of said grader plate portions, and thereby and therewith raising the other grader plate portion, with respect to the frame.

WILLIAM HURST LEWIS. 

